Home / 855,450.60-1,280,411.10-667,444.20

Finding the Fourth Proportional to 855,450.60, 1,280,411.10 and 667,444.20

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Solution

The fourth proportional to 855,450.60, 1,280,411.10 and 667,444.20 is: 999,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,450.60 : 1,280,411.10 = 667,444.20 : x
  2. Step 2: Convert to fraction form
    855,450.60/1,280,411.10 = 667,444.20/x
  3. Step 3: Cross multiply
    855,450.60x = 1,280,411.10 × 667,444.20
  4. Step 4: Simplify right side
    855,450.60x = 854,602,962,310.62
  5. Step 5: Solve for x
    x = 854,602,962,310.62/855,450.60
  6. Step 6: Final answer
    x = 999,009.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.